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COSTS AND ESTIMATED PROFITS ON UNCOMPLETED CONTRACTS (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Schedule of costs and estimated earnings on uncompleted contracts [Abstract]    
Costs incurred on uncompleted contracts $ 36,297 $ 34,400
Estimated profits, thereon 11,258 13,119
Total 47,555 47,519
Less: billings to date 29,975 33,422
Net 17,580 14,097
Schedule of Costs and Estimated Earnings on Uncompleted Contracts Included in Condensed Consolidated Balance Sheets [Abstract]    
Costs and estimated profits in excess of billings on uncompleted contracts 19,784 22,045
Billings in excess of costs and estimated profits on uncompleted contracts (2,197) (8,021)
Translation adjustment (7) 73
Net $ 17,580 $ 14,097